If the length of a rectangle is increased by 25 percent and width is decreased by 20 percent then the area of the rectangle
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Let the length be L and width be W.
Area is L × W
After change,
New length is 1.25 × L
New width is 0.8 × W
New area is 1.25 × 0.8 × L × W = L × W
Therefore, no change in area
Area is L × W
After change,
New length is 1.25 × L
New width is 0.8 × W
New area is 1.25 × 0.8 × L × W = L × W
Therefore, no change in area
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